What are good free sites for tracing family trees?

Question:

What are good free sites for tracing family trees?

My mum has recently started tracing her family tree and I want to point her in the right direction for good web sites. She has already tried "genuki", familysearch" and familyrecords". Are there any others that might help?

Best Answer - Chosen by Asker: Try tapping into the Mormon Church's web site on geneaology. It is www.visitsaltlake.com. The Mormons excel at tracing family trees. If anyone can find what you are looking for, they can.